* This file is part of wimlib, a library for working with WIM files.
*
* wimlib is free software; you can redistribute it and/or modify it under the
- * terms of the GNU Lesser General Public License as published by the Free
- * Software Foundation; either version 2.1 of the License, or (at your option)
+ * terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your option)
* any later version.
*
* wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
- * You should have received a copy of the GNU Lesser General Public License
+ * You should have received a copy of the GNU General Public License
* along with wimlib; if not, see http://www.gnu.org/licenses/.
*/
#define _WIMLIB_INTERNAL_H
#include "util.h"
+#include "list.h"
struct stat;
+struct dentry;
+struct inode;
#define WIM_MAGIC_LEN 8
#define WIM_GID_LEN 16
/* Flags for the `flags' field of the struct resource_entry structure. */
-/* ??? */
+/* I haven't seen this flag used in any of the WIMs I have examined. I assume
+ * it means that there are no references to the stream, so the space is free.
+ * However, even after deleting files from a WIM mounted with `imagex.exe
+ * /mountrw', I could not see this flag being used. Either way, we don't
+ * actually use this flag for anything. */
#define WIM_RESHDR_FLAG_FREE 0x01
-/* Indicates that a file resource is a metadata resource. */
+/* Indicates that the stream is a metadata resource for a WIM image. */
#define WIM_RESHDR_FLAG_METADATA 0x02
-/* Indicates that a file resource is compressed. */
+/* Indicates that the stream is compressed. */
#define WIM_RESHDR_FLAG_COMPRESSED 0x04
-/* ??? */
+/* I haven't seen this flag used in any of the WIMs I have examined. Perhaps it
+ * means that a stream could possibly be split among multiple split WIM parts.
+ * However, `imagex.exe /split' does not seem to create any WIMs like this.
+ * Either way, we don't actually use this flag for anything. */
#define WIM_RESHDR_FLAG_SPANNED 0x08
//u8 unused[WIM_UNUSED_LEN];
};
-/* Flags for the `flags' field of the struct wim_header. */
-
+/* Flags for the `flags' field of the struct wim_header: */
/* Reserved for future use by M$ */
#define WIM_HDR_FLAG_RESERVED 0x00000001
/* Files and metadata in the WIM are compressed. */
#define WIM_HDR_FLAG_COMPRESSION 0x00000002
-/* WIM is read-only. */
+/* WIM is read-only (we ignore this). */
#define WIM_HDR_FLAG_READONLY 0x00000004
/* Resource data specified by images in this WIM may be contained in a different
- * WIM */
+ * WIM. Or in other words, this WIM is part of a split WIM. */
#define WIM_HDR_FLAG_SPANNED 0x00000008
-/* The WIM contains resources only; no filesystem metadata. */
+/* The WIM contains resources only; no filesystem metadata. We ignore this
+ * flag, as we look for file resources in all the WIMs anyway. */
#define WIM_HDR_FLAG_RESOURCE_ONLY 0x00000010
-/* The WIM contains metadata only. */
+/* The WIM contains metadata only. We ignore this flag. Note that all the
+ * metadata resources for a split WIM should be in the first part. */
#define WIM_HDR_FLAG_METADATA_ONLY 0x00000020
-/* Lock field to prevent multiple writers from writing the WIM concurrently. */
+/* Lock field to prevent multiple writers from writing the WIM concurrently. We
+ * ignore this flag. */
#define WIM_HDR_FLAG_WRITE_IN_PROGRESS 0x00000040
-/* Reparse point fixup ??? */
+/* Reparse point fixup ???
+ * This has something to do with absolute targets of reparse points / symbolic
+ * links but I don't know what. We ignore this flag. */
#define WIM_HDR_FLAG_RP_FIX 0x00000080
-/* Unknown compression type */
+/* Unused, reserved flag for another compression type */
#define WIM_HDR_FLAG_COMPRESS_RESERVED 0x00010000
/* Resources within the WIM are compressed using "XPRESS" compression, which is
* a LZ77-based algorithm. */
#define WIM_HDR_FLAG_COMPRESS_LZX 0x00040000
-typedef struct _ntfs_volume ntfs_volume;
+#ifdef WITH_NTFS_3G
+struct _ntfs_volume;
+#endif
/* Structure for security data. Each image in the WIM file has its own security
* data. */
* that wimlib writes, currently), it will be 8 bytes. */
u32 total_length;
- /* The number of security descriptors in the array @descriptors, below. */
- u32 num_entries;
+ /* The number of security descriptors in the array @descriptors, below.
+ * It is really an unsigned int, but it must fit into an int because the
+ * security ID's are signed. (Not like you would ever have more than a
+ * few hundred security descriptors anyway). */
+ int32_t num_entries;
/* Array of sizes of the descriptors in the array @descriptors. */
u64 *sizes;
u32 refcnt;
};
-struct link_group_table;
+struct inode_table;
/* Metadata resource for an image. */
/* Pointer to the security data for the image. */
struct wim_security_data *security_data;
- /* Hard link group table */
- struct link_group_table *lgt;
-
/* A pointer to the lookup table entry for this image's metadata
* resource. */
struct lookup_table_entry *metadata_lte;
+ struct hlist_head inode_list;
+
/* True if the filesystem of the image has been modified. If this is
* the case, the memory for the filesystem is not freed when switching
* to a different WIM image. */
int add_flags;
int write_flags;
bool write_metadata;
- ntfs_volume *ntfs_vol;
};
+#ifdef WITH_NTFS_3G
+ struct _ntfs_volume *ntfs_vol;
+#endif
/* The currently selected image, indexed starting at 1. If not 0,
* subtract 1 from this to get the index of the current image in the
return &w->image_metadata[w->current_image - 1];
}
+struct pattern_list {
+ const char **pats;
+ size_t num_pats;
+ size_t num_allocated_pats;
+};
+
+struct capture_config {
+ struct pattern_list exclusion_list;
+ struct pattern_list exclusion_exception;
+ struct pattern_list compression_exclusion_list;
+ struct pattern_list alignment_list;
+ char *config_str;
+ char *prefix;
+ size_t prefix_len;
+};
+
/* hardlink.c */
-struct link_group_table *new_link_group_table(u64 capacity);
-int link_group_table_insert(struct dentry *dentry,
- void *__table);
-void free_link_group_table(struct link_group_table *table);
-u64 assign_link_groups(struct link_group_table *table);
-int link_groups_free_duplicate_data(struct link_group_table *table);
+/* Hash table to find inodes, identified by their inode ID.
+ * */
+struct inode_table {
+ /* Fields for the hash table */
+ struct hlist_head *array;
+ u64 num_entries;
+ u64 capacity;
+
+ /*
+ * Linked list of "extra" inodes. These may be:
+ *
+ * - inodes with link count 1, which are all allowed to have 0 for their
+ * inode number, meaning we cannot insert them into the hash table
+ * before calling assign_inode_numbers().
+ *
+ * - Groups we create ourselves by splitting a nominal inode due to
+ * inconsistencies in the dentries. These inodes will share a inode
+ * ID with some other inode until assign_inode_numbers() is called.
+ */
+ struct hlist_head extra_inodes;
+};
+
+int init_inode_table(struct inode_table *table, size_t capacity);
+static inline void destroy_inode_table(struct inode_table *table)
+{
+ FREE(table->array);
+}
+int inode_table_insert(struct dentry *dentry, void *__table);
+u64 assign_inode_numbers(struct hlist_head *inode_list);
+int fix_inodes(struct inode_table *table, struct hlist_head *inode_list);
/* header.c */
int show_progress);
extern int check_wim_integrity(WIMStruct *w, int show_progress, int *status);
+/* join.c */
+
+extern int new_joined_lookup_table(WIMStruct *w,
+ WIMStruct **additional_swms,
+ unsigned num_additional_swms,
+ struct lookup_table **table_ret);
+
+extern int verify_swm_set(WIMStruct *w,
+ WIMStruct **additional_swms,
+ unsigned num_additional_swms);
/* modify.c */
extern void destroy_image_metadata(struct image_metadata *imd,
struct lookup_table *lt);
+extern bool exclude_path(const char *path,
+ const struct capture_config *config,
+ bool exclude_prefix);
extern int do_add_image(WIMStruct *w, const char *dir, const char *name,
- const char *description, const char *flags_element,
+ const char *config_str, size_t config_len,
int flags,
- int (*capture_tree)(struct dentry *, const char *,
+ int (*capture_tree)(struct dentry **, const char *,
struct lookup_table *,
- struct wim_security_data *, int, void *),
+ struct wim_security_data *,
+ const struct capture_config *,
+ int, void *),
void *extra_arg);
/* resource.c */
extern int extract_full_wim_resource_to_fd(const struct lookup_table_entry *lte,
int fd);
-extern int read_metadata_resource(FILE *fp, int wim_ctype,
+extern int read_metadata_resource(WIMStruct *w,
struct image_metadata *image_metadata);
void free_security_data(struct wim_security_data *sd);
/* symlink.c */
-ssize_t dentry_readlink(const struct dentry *dentry, char *buf, size_t buf_len,
+ssize_t inode_readlink(const struct inode *inode, char *buf, size_t buf_len,
const WIMStruct *w);
extern void *make_symlink_reparse_data_buf(const char *symlink_target,
size_t *len_ret);
-extern int dentry_set_symlink(struct dentry *dentry,
- const char *target,
- struct lookup_table *lookup_table,
- struct lookup_table_entry **lte_ret);
+extern int inode_set_symlink(struct inode *inode,
+ const char *target,
+ struct lookup_table *lookup_table,
+ struct lookup_table_entry **lte_ret);
/* wim.c */
extern WIMStruct *new_wim_struct();
git://wimlib.net / wimlib / blobdiff